Question

Find the value of standard deviation and coefficient of variation from the following:
(Standard Deviation = 1.149)
10
Venables
20
30
40
50
60
70
6
Pequency
8
16
15
32
11
12
(Standard Deviation = 16.43; Coefficient of SD = 37.34)​

Answer 1

Answer:

σ is the standard deviation for a population, which is the same as “s” for the sample. μ is the mean for the population, which is the same as XBar in the sample. In other words, to find the coefficient of variation, divide the standard deviation by the mean and multiply by 100.